Overview
The Festo 150039 LFR 1/2-S-5M-B filter-regulator is a critical component in pneumatic control systems, combining efficient filtration and pressure regulation in a single, compact assembly. The unit features a G1/2 (½-inch) threaded port connection, 5-micron filtration element, and automatic condensate drain management—essential for maintaining clean, dry compressed air in production environments.
Key Features
- G1/2 (½-inch) port connection for standard pneumatic applications
- 5-micron filtration removes particles and contaminants from compressed air
- Automatic condensate drain reduces maintenance intervention
- Polycarbonate bowl construction with metal guard protection
- Adjustable pressure regulation with rotary knob control
- Prepared for pressure gauge/display mounting (G1/4 connection)
Technical Specifications
- Port Size: G1/2 (½-inch BSP)
- Filtration Rating: 5 micrometers
- Maximum Operating Pressure: 16 bar (typical LFR-S variant)
- Pressure Adjustment Range: 0.5–16 bar
- Maximum Flow Rate: 4000 L/min
- Operating Temperature Range: 5°C to 60°C
- Bowl Material: Polycarbonate with protective guard
- Condensate Capacity: 43 mL maximum
- Drain Type: Automatic
- Certifications: ISO 8573-1:2010, VDMA 24364-B1/B2-L, RoHS-compliant
Typical Applications
- Pneumatic control circuits requiring regulated, filtered air supply
- Industrial automation equipment with compressed air actuation
- Manufacturing cells using pneumatic cylinders and valves
- Machine tools requiring clean air for precision operation
- Food, pharmaceutical, and electronics production facilities
- Mobile and portable pneumatic tool systems
Compatibility & Replacements
Compatible With
- Standard G1/2 pneumatic circuits and ISO 4401 manifold systems
- Festo proportional and directional control valves
- Parker, SMC, and other ISO 4401-compatible valve systems
- Compressed air lines rated for 16 bar and above
- Pneumatic cylinders and actuators (double-acting and single-acting)
Replaces / Drop-In Replacement For
- Festo LFR 1/2-S-5M variants with equivalent -B bowl designation
- Verify specific model compatibility with your system integrator before ordering
Works With
- Festo FluidSIM simulation and sizing software
- ISO 8573-1:2010 standard pneumatic air systems
- G1/4 pressure gauges and electronic pressure transmitters
- Compressed air generation and distribution networks






